CAN Bus (Controller Area Network)
Definition
Multi-master serial communication protocol designed for reliable communication in automotive and industrial environments. Common interface for BMS communication.
Why It Matters
- Industry standard for BMS communication in vehicle applications
- Robust against electrical noise and interference
- Supports multiple devices on single bus
- Well-established protocol with extensive tooling support
Common Pitfalls
- Not properly terminating CAN bus (120Ω resistors at each end)
- Using non-twisted-pair cable in noisy environments
- Not implementing message timeout monitoring
- Exceeding maximum bus length or node count